One Step Test for SARS-CoV-2 Antigen (Colloidal Gold) is intended for the qualitative detection of nucleocapsid protein antigen from SARS-in serum, plasma or whole blood samples from patients suspected of COVID-19 infection by a healthcare provider. A kit contains: Package specifications: 25 tests/box 1) Getein SARS-CoV-2 antigen test card in a sealed pouch with desiccant 2) Sample extraction solution: 25 tubes/box 3) Sampling swab: 25 pieces/box 4) Disposable pipette: 25 pieces/box 5) User manual: 1 piece/box